Adding task for week3
Add more details for GH API Rate Limit
Make graphId return bold
Add materials for testing frameworks
Add method addEdge to the Graph
Merge branch 'master' of github.com:HackBulgaria/NodeJS-1
Merge branch 'master' of https://github.com/HackBulgaria/NodeJS-1
added short implementation of a graph. needs work with the path functioon